Sectional boiler



'March 4 1924.

M. E. HERBERT SECTIONAL BOILER 3 Sheets-Sheet 1 Filed Sept. 23. 1921 IIVVE/VTOR M. E Hal-bed,

' ATTOR/VEV8 WITNESSES MM M. E. HERBERT SECTIONAL BOILER March 4 1924.

Filed Sept. 23

,1921 3 Sheets-Sheet 2 lm'mron M. E. Herberi,

WITNESSES A TTO RNEYS.

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Filed Sept. 23. 1921 3 Sheets-Sheet 3 WITNESSES v ATTORNEYS Patented Mar. 4, 1924.

PATENT car es.

MICHAEL EDWARD HERBERT, OF CHICAGO, ILLINOIS.

sEoTIoNAf. BOILER.

Application filed September 23, '1921. Serial No. 502,816.

To all whom it may concern:

Be it known that I, MICHAEL EDWARD HERBERT, a citizen ofthe United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sectional Boilers, of which the following is a specification. a j 1 I My invention relates to an improvement in sectional boilers, an'd has for'its object to provide a boiler of this character which may be conveniently constructed of cast iron, which is highly organized and yet of simple and durable construction and which is adapted to efliciently utilize various grades of fuel, the fuel being completely consumed so as to practically eliminate smoke, and the heat that is generated being completely absorbed in the water orother heating medium mad use of. I v 7 Another object is to provide a boiler of this character which" is of simple and durable construction, reliable in operation and easy and inexpensive to manufacture and operate. 5 r

Other objects and advantages of the invention reside in certain novel features of construction, combination and arrangement of parts which will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming part of this specificatiomandin which: i

Figure 1 is a perspective view illustrating the preferred embodiment of the invention; Figure 2 is: a. View in longitudinal vertical section;

Figure 3 is a perspective view illust rat ing the sections of the invention detached and positioned for assembly; and

Figure 4 is a perspective View of the base upon which the boiler properis mounted.

Referring to the drawings wherein for the sake of illustration isshown the preferred embodiment of the invention, the numeral 10 designates generally the base which includes an ash pit 11 having an ash pit door 12. A rocking grate 13 is mounted on the base and has rocking or shaking mechanism 14: associated therewith whereby it maybe agitated in the usual manner. A water tube bridge wall 15 upstands from the base at the rear end of the grate 13. This water tube bridge wall may be used as a domestic water heater independent of the In the embodiment 'of the shown, there is included a front section 20, a complementary section 21, intermediate water or it may be embodied in the boiler to increase and supplement its action.

' The boiler proper is mounted on the base and is made up, in general, of a plurality of vertical sections, transversely-posited,

constructed of cast iron, and provided in any I desired number.

lnvention portions thereof are provided with'interfit ting couplings all of identical construction and which preferably comprising nipples and complementary sockets or seats 31.

The nipples and sockets having a ground joint between them or other equivalent packing means in lieu thereof. Tie rods 32 extend through the openings of the crown or head portions and of the feet portions and by means of nuts 33 and washers 34; secure the sections in assembly.

The front section 20 is provided with a magazine doori35 and a clinker door 36.

This front section together with the complementary' section 21 defines a magazine 37, the complementary section's having a depending and transversely extending hollow wall 38 which constitutes the back wall of the magazine and a water tube or water leg. The hollow wall 38'extnds entirely across the space between the legs of the complementary section but terminates short of the lower end of these legs and above the plane of the water tube bridge wall 15. The surface of the hollow wall 38 which lies in the magazine is provided with a plurality of spaced vertically extending ribs 39 which define channels for the passage of the gases released from the fuel as will hereinafter more fully appear.

The intermediate sections 22 and 23 are provided adjacent their lower ends with transversely extending water tubes 40 and 11, respectively which communicate with heated coals on the grate to pass below them.

The intermediate section 23' is also provided with a centrally disposed and transversely extendingwater tube 43 which overlies and is spaced from the transversely extending water tube 41 of this section. The rear section 24 which abuts the intermediate section 23 includes the back wall 44 of the boiler and a centrally disposed and transversely.

extending water tube 45 which is horizontally alined with and abuts the centrally disposed and transversely extending water tube 43'of the intermediate section 23. It is obvious that the gases of combustion which are constrained by the Water tubes and 41 to flow beneath them eventually pass up through the vertical fire space 46 defined by the water tube 41 and the back wall of the boilerand then through the horizontal fire space 47 under the boiler tubes 43 and 45, then up around the upper vertical fire space 48 between the water tube 43 and the water leg 38 and out through the upper horizontal fire space 49 between the water chambers 25 and the water tubes 43 and 45, and finally out through the flue. The undersurfaces of all of the water spaces and water tubes are corrugated, as at C (see Figure 3) whereby a maximum area is exposed to the action of the heated gases of combustion.

In operation, the heated gases from the burning coals on the grate'fiow overthe water tube bridge wall 15 and under the water tubes 40 and 41 and through the fire spaces 46, 47, 48 and 49 in contact with practically all sides of the water tubes, water legs and water spaces so as to efficiently transmit the heat of the gases to the water. The released carbon and gases of the fuel in the magazine pass down through the channels defined by the ribs 39 and over the bridge wall 40 where they are ignited and minglewith the heated gases flowing from the burning fuel on the grate. v

The boiler may be conveniently and readily manufactured from cast-iron, and involves such a simple construction and so few parts and at the same time is so highly organized as to provide a thoroughly practical and efiicient boiler having a high degree of adaptability and a Wide field of utility.

I claim: 3

1. A sectional boiler including a base having a water tube bridge wall and comprising a front section and a complementary section defining amagazine, the complementary section including a depending hollow wall constituting a water leg and the back wall of the magazine,intermediate sections having transverse water tubes adjacent their lower ends abutting each other in assembly and one of said water tubesrabutting the depending hollow wall of the complementary section adjacent the lower end thereof, said transverse water tubes overlying the'water tube bridge wall, the intermediate section remote from'the front of the boiler having a second transverse water tube overlying its first mentioned tranverse water tube, and a rear section including the back wall of the boiler and a transverse water tube abutting the second transverse water tube of the adjacent intermediate section, said last-mentioned transverse water .tion including 'a depending wall constituting the back wall of'the magazine, intermediate sections having transverse water'tubes adj acent thelr lower ends abutting each other 1n assembly and one of said water tubes abut-V ting the depending wall ofthe complementary section adjacent thelower end thereof, the intermediate section remote from the front of the boiler having a second transverse water tube overlying its first mentioned transverse water tube, and a rear section including the back Wall 'of the boiler.

and a transverse water tube abutting the second transverse water tube of the adja- 

